gretchenglg gretchenglg
  • 02-12-2020
  • Mathematics
contestada

What number would you multiply the 2nd equation by in order to eliminate the y terms?
4x - 4y = 16
2x + y = 5

Respuesta :

jahzara06
jahzara06 jahzara06
  • 02-12-2020

Answer:

x=3

y=-1

Step-by-step explanation:

first multiply the 2nd row by 2 so you will get

4x-4y=16

4x+2y=10

then subtract the 2nd row from the first row and so you will get

-6y=6

then solve for y in the above equation

y=-1

then substitute y=-1 into any 2 equations .

i picked the first 1

4x-4 × -1=16

then solve for x .

you will get

x=3

Answer Link

Otras preguntas

The c4 pathway ____.? a. ?produces large amounts of carbohydrates b. ?is less efficient than the c3 pathway c. ?involves the activity of rubisco d. ?is the mech
When you say happy birthday and they reply thank you what do you say'?
Model the scenario with an inequality statement. Shirts are $12 each and Mary has no more than $48 to spend. How many shirts can she purchase?
In the importance of being earnest, lady bracknell makes a visit to algernon. what happens to the cucumber sandwiches?
Charlie hayes owns his own landscaping business, including all the land on which they grow their plants, and all the equipment. charlies son josh has just gradu
Given that f(x)=x 2+3x+6 and g(x) =x-3, solve for f(g(x))when x=1
The number of 1 inch cubes that will fit into a box that is 7 inches wide blank inches long and 1 inch high is 154
Difference between driving and newsboy cap
A train travels 80 kilometers in 3 hours , and 84 kilometers in 2 hours .What is the average speed ?
Why does epithelial tissue require a connective tissue?